Document Detail

Timing of pharyngeal and upper esophageal sphincter pressures as a function of normal and effortful swallowing in young healthy adults.
MedLine Citation:
PMID:  16172825     Owner:  NLM     Status:  MEDLINE    
The effect of effortful swallow on pharyngeal pressure and UES relaxation onsets and durations was examined. Eighteen adults, nine males and nine females (mean age=27.9 yr), participated. Timing of pharyngeal pressure and onset and duration of UES relaxation were measured across ten trials of normal and ten trials of effortful swallows. Results revealed that manometric timing measurements are consistent across trials. The first and second statistical analyses investigated the pharyngeal pressure and UES relaxation onsets and durations, respectively. Both analyses identified a significant interaction of swallow type (i.e., effortful vs. normal) by manometric sensor location (p<0.05). Across normal and effortful swallows, UES relaxation preceded pharyngeal pressure onsets, yet the rate of change (or degree of delay) varied across the sensors. Furthermore, the effortful swallow elicited longer pharyngeal pressure and UES relaxation durations, yet the pressure duration measured in the upper pharynx was significantly longer than that measured lower in the pharynx. These findings offer insight as to the potential positive and negative influence of the effortful swallow on pharyngeal timing.
Susan G Hiss; Maggie Lee Huckabee
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Dysphagia     Volume:  20     ISSN:  0179-051X     ISO Abbreviation:  Dysphagia     Publication Date:  2005  
Date Detail:
Created Date:  2005-09-20     Completed Date:  2006-01-17     Revised Date:  2009-11-19    
Medline Journal Info:
Nlm Unique ID:  8610856     Medline TA:  Dysphagia     Country:  United States    
Other Details:
Languages:  eng     Pagination:  149-56     Citation Subset:  IM    
Department of Otolaryngology, Center for Voice and Swallowing Disorders, Wake Forest University School of Medicine, Winston-Salem, North Carolina 27157, USA.
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MeSH Terms
Analysis of Variance
Biofeedback, Psychology
Deglutition / physiology*
Deglutition Disorders / physiopathology
Esophageal Sphincter, Upper / physiology*
Muscle Contraction
Pharynx / physiology*
Time Factors

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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